Biotechnology — is technology based on biology, especially when used in agriculture, food science, and medicine. The United Nations Convention on Biological Diversity defines biotechnology as: [ [http://www.biodiv.org/convention/convention.shtml The Convention… … Wikipedia

Herbicide — Weeds killed with herbicide Herbicides, also commonly known as weedkillers, are pesticides used to kill unwanted plants.[1] Selective herbicides kill specific targets while leaving the desired crop relatively unharmed. Some of these act by… … Wikipedia